How to Replace timing chain on Audi A5 (8T) 1.8 TFSI 2009

Special tools

• Camshaft adjuster control valve removal tool – No.T10352.
• Camshaft adjuster control valve removal tool – No.T10352/1.
• Crankshaft pulley holding tool – No.T10355.
• Tensioner locking pin – No.T40011.

General precautions

• Disconnect battery earth lead.
• Remove spark plugs to ease turning engine.
• Turn engine in normal direction of rotation (unless otherwise stated).
• Observe tightening torques.
• If fitted: Mark position of crankshaft position (CKP) sensor before removal.
• Do NOT turn crankshaft via camshaft or other sprockets.
• Do NOT turn crankshaft or camshaft with timing chain removed.

Valve timing procedures

• Engine at TDC on No.1 cylinder [1] .

WARNING: Crankshaft sprocket not keyed to crankshaft.

• Refit crankshaft pulley bolt with spacer.
• Remove inlet camshaft adjuster control valve (LH thread) [2] .
• Remove exhaust camshaft sprocket bolt and washer [3] .
• Remove camshaft support bracket [4] .
• Ensure coloured or painted chain links aligned with timing mark on each camshaft sprocket [5] .
• Ensure balancer shaft timing marks aligned [6] .
• Ensure balancer shaft gear timing marks aligned [7] .
• Ensure crankshaft sprocket timing marks aligned [8] & [9] .
• Reset tensioner [10] :
  • • Release locking mechanism using a suitable tool [11] .
    • Push plunger into tensioner housing [12] .
    • Insert tensioner locking pin [13] .
• Remove pin to release timing chain tensioner plunger [13] .
• Tighten exhaust camshaft sprocket bolt [3] .